Caro-Kann Defense: Alien Gambit

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng5 h6 6. Nxf7

Caro-Kann Defense: Alien Gambit after 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng5 h6 6. Nxf7 87654321abcdefgh

The Caro-Kann Defense: Alien Gambit is a chess opening classified as ECO B15, reached after 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng5 h6 6. Nxf7. It is a line of the Caro-Kann Defense. Black is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 1,492 times by this move order. White won 53%, 2% were drawn and Black won 45%. The most popular continuation is 6… Kxf7 (100% of games).

Engine evaluation: −1.80 (Stockfish, depth 42; best line 6… Kxf7 7. Bc4+ Be6 8. Bxe6+ Kxe6 9. Nf3)

ECO
B15
Moves
11 plies
FEN
rnbqkb1r/pp2pNp1/2p2n1p/8/3P4/8/PPP2PPP/R1BQKBNR b KQkq - 0 6
PGN
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng5 h6 6. Nxf7

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
0-149928159%38%
1500-199994751%46%
2000+26449%47%
All1,49253%45%

Most played moves

MoveGamesWhite / draw / Black
6… Kxf71,491 (100%)53%45%
6… Bf51 (0%)100%

Master games

127 over-the-board games are classified under this line (White 43%, draw 7%, Black 50%). The strongest:

Search all games of the Caro-Kann Defense: Alien Gambit and its sub-variations

Highest-rated Lichess games

Comes from

Caro-Kann Defense (3. Nc3 dxe4) 1. e4 c6 2. d4 d5 3. Nc3 dxe4

More Caro-Kann Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.